do not exec file if none of the kw is/are present
do not exec file if none of the kw is/are present

Also, in case None is the value for kw, make it a tuple

MechCoder/sympy,AkademieOlympia/sympy,pandeyadarsh/sympy,rahuldan/sympy,farhaanbukhsh/sympy,Sumith1896/sympy,MechCoder/sympy,skirpichev/omg,Gadal/sympy,kevalds51/sympy,liangjiaxing/sympy,emon10005/sympy,Davidjohnwilson/sympy,wyom/sympy,maniteja123/sympy,skidzo/sympy,ChristinaZografou/sympy,sahilshekhawat/sympy,wanglongqi/sympy,vipulroxx/sympy,AunShiLord/sympy,shipci/sympy,wyom/sympy,sahilshekhawat/sympy,atreyv/sympy,mafiya69/sympy,iamutkarshtiwari/sympy,yukoba/sympy,garvitr/sympy,liangjiaxing/sympy,abloomston/sympy,meghana1995/sympy,cswiercz/sympy,Mitchkoens/sympy,vipulroxx/sympy,sahmed95/sympy,yashsharan/sympy,abhiii5459/sympy,grevutiu-gabriel/sympy,sunny94/temp,shikil/sympy,chaffra/sympy,ChristinaZografou/sympy,jbbskinny/sympy,kaushik94/sympy,Vishluck/sympy,shipci/sympy,iamutkarshtiwari/sympy,toolforger/sympy,lindsayad/sympy,asm666/sympy,VaibhavAgarwalVA/sympy,atreyv/sympy,toolforger/sympy,souravsingh/sympy,moble/sympy,bukzor/sympy,Curious72/sympy,Sumith1896/sympy,kaichogami/sympy,jamesblunt/sympy,jaimahajan1997/sympy,kumarkrishna/sympy,pbrady/sympy,beni55/sympy,oliverlee/sympy,kaichogami/sympy,beni55/sympy,maniteja123/sympy,Designist/sympy,oliverlee/sympy,Mitchkoens/sympy,jerli/sympy,Mitchkoens/sympy,kumarkrishna/sympy,abloomston/sympy,kevalds51/sympy,cccfran/sympy,sahmed95/sympy,dqnykamp/sympy,Curious72/sympy,drufat/sympy,Titan-C/sympy,abhiii5459/sympy,Curious72/sympy,dqnykamp/sympy,emon10005/sympy,cswiercz/sympy,cccfran/sympy,sunny94/temp,atsao72/sympy,farhaanbukhsh/sympy,toolforger/sympy,Vishluck/sympy,abloomston/sympy,pandeyadarsh/sympy,VaibhavAgarwalVA/sympy,wanglongqi/sympy,Arafatk/sympy,cswiercz/sympy,iamutkarshtiwari/sympy,mcdaniel67/sympy,Davidjohnwilson/sympy,hargup/sympy,atsao72/sympy,aktech/sympy,rahuldan/sympy,yukoba/sympy,mafiya69/sympy,jaimahajan1997/sympy,jbbskinny/sympy,shikil/sympy,Sumith1896/sympy,mafiya69/sympy,MechCoder/sympy,sampadsaha5/sympy,kaushik94/sympy,diofant/diofant,bukzor/sympy,souravsingh/sympy,mcdaniel67/sympy,kumarkrishna/sympy,yashsharan/sympy,jerli/sympy,postvakje/sympy,chaffra/sympy,hargup/sympy,MridulS/sympy,pbrady/sympy,yashsharan/sympy,garvitr/sympy,wyom/sympy,asm666/sympy,kaichogami/sympy,AkademieOlympia/sympy,Davidjohnwilson/sympy,MridulS/sympy,ahhda/sympy,saurabhjn76/sympy,liangjiaxing/sympy,moble/sympy,jerli/sympy,atreyv/sympy,Arafatk/sympy,meghana1995/sympy,ahhda/sympy,madan96/sympy,Titan-C/sympy,sunny94/temp,jbbskinny/sympy,sahilshekhawat/sympy,AunShiLord/sympy,shipci/sympy,Arafatk/sympy,debugger22/sympy,atsao72/sympy,debugger22/sympy,shikil/sympy,maniteja123/sympy,chaffra/sympy,lindsayad/sympy,madan96/sympy,farhaanbukhsh/sympy,mcdaniel67/sympy,grevutiu-gabriel/sympy,wanglongqi/sympy,kaushik94/sympy,jamesblunt/sympy,ChristinaZografou/sympy,MridulS/sympy,ga7g08/sympy,abhiii5459/sympy,sampadsaha5/sympy,pbrady/sympy,Shaswat27/sympy,kevalds51/sympy,aktech/sympy,emon10005/sympy,cccfran/sympy,hargup/sympy,dqnykamp/sympy,rahuldan/sympy,ga7g08/sympy,VaibhavAgarwalVA/sympy,pandeyadarsh/sympy,jamesblunt/sympy,asm666/sympy,Gadal/sympy,yukoba/sympy,ahhda/sympy,skidzo/sympy,skidzo/sympy,drufat/sympy,Designist/sympy,drufat/sympy,garvitr/sympy,AunShiLord/sympy,AkademieOlympia/sympy,saurabhjn76/sympy,souravsingh/sympy,meghana1995/sympy,sampadsaha5/sympy,postvakje/sympy,grevutiu-gabriel/sympy,debugger22/sympy,sahmed95/sympy,ga7g08/sympy,oliverlee/sympy,Titan-C/sympy,Shaswat27/sympy,lindsayad/sympy,postvakje/sympy,jaimahajan1997/sympy,Gadal/sympy,aktech/sympy,Designist/sympy,madan96/sympy,moble/sympy,bukzor/sympy,Vishluck/sympy,saurabhjn76/sympy,Shaswat27/sympy,vipulroxx/sympy,beni55/sympy